What does code P25FD mean?

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25FD

P25FDTurbocharger/Supercharger Bypass Valve C Temperature Too High

P25FD means the engine computer has determined that the temperature reported for the turbocharger or supercharger bypass valve circuit C has exceeded its safe calibrated limit. The powertrain control module (PCM) monitors a temperature sensor or a modeled temperature value for that specific bypass valve circuit, and it sets this code when the reading stays too high for too long under the current operating conditions.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.